Company lists · Data refreshed September 2026

Top 25 Plant floor cybersecurity companies based in Germany

RevenueBase identified 95 plant floor cybersecurity companies headquartered in Germany as of September 2026 and tracks 1,907 professional contacts across them, including 635 with verified work emails. Berlin is the largest hub.

This list covers plant floor cybersecurity companies headquartered in Germany, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 29, 2026 86% judged on-target in blind review
95Companies
1,907Contacts tracked
635Verified emails
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The 25 largest plant floor cybersecurity companies based in Germany

Ranked by team size
Top 25 of 95 plant floor cybersecurity companies based in Germany, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to plant floor cybersecurity companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceEssen, GermanyHQ checked Sep 29, 20261,001-5,000623 contacts →

Indirect evidence

“secunet – We are the Guardians of Europe's Digital Freedom.”

Source: RevenueBase Database · checked Sep 29, 2026
2Indirect evidenceBochum, GermanyHQ checked Sep 29, 2026501-1,000386 contacts →

Indirect evidence

“Progress is our motivation because we are convinced that it will lead us to a successful future – independent of industries, companies and social classes.”

Source: RevenueBase Database · checked Sep 29, 2026
3Indirect evidenceWuppertal, GermanyHQ checked Sep 29, 202651-20079 contacts →

Indirect evidence

“r-tec IT Security ist seit über 25 Jahren auf IT-Sicherheit spezialisiert.”

Source: RevenueBase Database · checked Sep 29, 2026
4Partial evidenceJena, GermanyHQ checked Sep 29, 202651-20065 contacts →

Partial evidence

“Enginsight ist die praxisnahe und effiziente Cybersecurity Plattform aus Deutschland, für mittelständische Unternehmen, KRITIS und öffentliche Träger.”

Source: RevenueBase Database · checked Sep 29, 2026
5Partial evidenceDüsseldorf, GermanyHQ checked Sep 29, 202651-20054 contacts →

Partial evidence

“water is a cybersecurity company that provides holistic IT security solutions to keep your business safe.”

Source: RevenueBase Database · checked Sep 29, 2026
6Indirect evidenceLübeck, GermanyHQ checked Sep 29, 202651-20045 contacts →

Indirect evidence

“We are a leading provider for production security and efficiency.”

Source: RevenueBase Database · checked Sep 29, 2026
7Indirect evidenceDresden, GermanyHQ checked Sep 29, 202651-20040 contacts →

Indirect evidence

“ENTIRETEC delivers Global Managed Services that keep business critical networks and security running 24/7 worldwide.”

Source: RevenueBase Database · checked Sep 29, 2026
8Indirect evidenceLangenfeld, GermanyHQ checked Sep 29, 202611-5037 contacts →

Indirect evidence

“As an owner-managed company, admeritia GmbH turned to industrial IT security shortly after its foundation in 2004.”

Source: RevenueBase Database · checked Sep 29, 2026
9Indirect evidenceAugsburg, GermanyHQ checked Sep 29, 202611-5031 contacts →

Indirect evidence

“ausecus GmbH delivers IT-Security Consulting and Managed Services for critical infrastructure organisations (KRITIS).”

Source: RevenueBase Database · checked Sep 29, 2026
10Partial evidenceLeipzig, GermanyHQ checked Sep 29, 202611-5027 contacts →

Partial evidence

“Rhebo provides simple and effective cybersecurity solutions for Operational Technology and distributed industrial assets for the energy sector, critical infrastructure and…”

Source: RevenueBase Database · checked Sep 29, 2026
11Indirect evidenceBremen, GermanyHQ checked Sep 29, 202651-20026 contacts →

Indirect evidence

“Mehr Schutz vor Angriffen aus dem Cyberraum: Cyberkriminalität ist eine der größten Bedrohungen unserer Zeit.”

Source: RevenueBase Database · checked Sep 29, 2026
12Indirect evidenceSaarbruecken, GermanyHQ checked Sep 29, 202651-20023 contacts →

Indirect evidence

“Die im Mai gegründete consistec Engineering & Consulting GmbH ist ein inhabergeführtes mittelständisches Unternehmen mit Sitz in Saarbrücken, Saarland.”

Source: RevenueBase Database · checked Sep 29, 2026
13Indirect evidenceKarlsruhe, GermanyHQ checked Sep 29, 202611-5022 contacts →

Indirect evidence

“Digitale Bedrohungen wachsen – und damit unsere Verantwortung.”

Source: RevenueBase Database · checked Sep 29, 2026
14Indirect evidenceDinkelsbühl, GermanyHQ checked Sep 29, 202611-5022 contacts →

Indirect evidence

“Als starke Marke umfasst das MB connect line Portfolio die Bereiche Sichere Fernwartung, IIoT & Industrial Security.”

Source: RevenueBase Database · checked Sep 29, 2026
15Partial evidenceMunich, GermanyHQ checked Sep 29, 202611-5022 contacts →

Partial evidence

“AVIANET GmbH is a global business technology company headquartered in Munich that provides disruptive IT/OT cybersecurity services, IoT and Industrial Automation, Corporate IT…”

Source: RevenueBase Database · checked Sep 29, 2026
16Indirect evidenceGelsenkirchen, GermanyHQ checked Sep 29, 202611-5021 contacts →

Indirect evidence

“We are a cyber security company based in Gelsenkirchen, Germany.”

Source: RevenueBase Database · checked Sep 29, 2026
17Indirect evidenceBerlin, GermanyHQ checked Sep 29, 202611-5020 contacts →

Indirect evidence

“We turn your INdustrial CYber DEfense on, respecting your special operating systems and requirements for efficient and effective security measures, including Railways, Automotive…”

Source: RevenueBase Database · checked Sep 29, 2026
18Indirect evidenceStolberg, GermanyHQ checked Sep 29, 202651-20020 contacts →

Indirect evidence

“We translate challenges of digitization into secure IT/OT solutions The digital transformation of industry is leading to an increasingly complex networking of machines, systems…”

Source: RevenueBase Database · checked Sep 29, 2026
19Indirect evidenceHallbergmoos, GermanyHQ checked Sep 29, 202611-5016 contacts →

Indirect evidence

“BxC Security focuses on delivering end-to-end cyber security consulting across IT and Production environments.”

Source: RevenueBase Database · checked Sep 29, 2026
20Indirect evidenceWerl, GermanyHQ checked Sep 29, 202611-5014 contacts →

Indirect evidence

“ARTADA GmbH is an information technology and services company based out of Hammer Str.”

Source: RevenueBase Database · checked Sep 29, 2026
21Indirect evidenceAugsburg, GermanyHQ checked Sep 29, 202611-5014 contacts →

Indirect evidence

“IT-Sicherheit, die schützt, bevor es kritisch wird!”

Source: RevenueBase Database · checked Sep 29, 2026
22Indirect evidenceEningen Unter Achalm, GermanyHQ checked Sep 29, 202611-5012 contacts →

Indirect evidence

“At KLG Smartec (KLG), we are dedicated to advancing industrial internet, integrating AI-powered solutions with top-notch Industrial Ethernet Switches and comprehensive Smart…”

Source: RevenueBase Database · checked Sep 29, 2026
23Partial evidenceDarmstadt, GermanyHQ checked Sep 29, 202611-5012 contacts →

Partial evidence

“We are SANCTUARY Systems, a cybersecurity company from Darmstadt, Germany.”

Source: RevenueBase Database · checked Sep 29, 2026
24Indirect evidenceSaarbrücken, GermanyHQ checked Sep 29, 20261-1011 contacts →

Indirect evidence

“Sicherheit können wir Wir sind sequire (für: security (engl: Sicherheit) und quire (lateinisch: können))!”

Source: RevenueBase Database · checked Sep 29, 2026
25Indirect evidenceHilchenbach, GermanyHQ checked Sep 29, 202611-5010 contacts →

Indirect evidence

“Ihr Vertrauen – Unser Schutz!”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 95 plant floor cybersecurity companies based in Germany

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Plant floor cybersecurity companies based in Germany at a glance

As of Sep 29, 2026
33.3%Verified-email coverage
20.1Average contacts per company
11-50Median size (employees)
10.5%Largest-city concentration · Berlin
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
38
11-50
44
51-200
11
501-1,000
1
1,001-5,000
1

Email recency for this list is measured worldwide rather than for Germany, so it is reported there. Company counts and contact totals on this page are exact for Germany, over 95 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among plant floor cybersecurity companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in Germany whose own description of what they do matches “plant floor cybersecurity companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names plant floor cybersecurity companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among plant floor cybersecurity companies, and records with no verified work email. Companies headquartered outside Germany are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every listed company carries at least one verified work email, 635 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 29, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names plant floor cybersecurity companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many plant floor cybersecurity companies are there based in Germany?

RevenueBase identified 95 plant floor cybersecurity companies headquartered in Germany as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Secunet Security Networks AG, headquartered in Essen, tops this list with the largest team on record.

Which city has the most plant floor cybersecurity companies?

Berlin leads with 10 headquartered companies, followed by Munich (4) and Frankfurt (3).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 635 verified decision-maker contacts tracked across these 95 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 29, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.